Improvement in machines for channeling and pricking soles



M. A. C. HOLMES. Machine for Channeling and Prioking Soles.

' No. 222,628. Patented Dec. 16,1879.

-- FErsizs, PHOTO-LITNDI=RAPHER WASHINGTON. 0 CV To all whom it may concern:

UNITED STATES MARY A. O. HOLMES, OF NEWPORT, RHODE ISLAND.

IMPROVEMENT IN MACHINES FOR CHANNELING AND PRICKING SOLES.

Specification forming part of Letters Patent No. 222,628., dated December 16, 1879; application filed Be it known that I, MARY A. (l. HOLMES, of the city and county of Newport, State of Rhode Island, have invented an Improvement in Machines for Channeling and Pricking Soles, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to improvements in machines for channeling and pricking inner soles, to be used in connection with welted Work or outer soles for turned work, the object 'being to channel this kind of soles and prick through and provide the raised rib or wale of leather left between the two cutters with a series of holes uniformly spaced, to be subsequently filled in with thread by hand.

In this my invention the leather sole to be channeled and pricked rests with its grain side upon a feedingwheel, herein shown as having the bearing for its shaft so supported by a spring that the feeding-wheel may be raised or lowered.

The feeding-wheel, located to act upon the grain side of the sole, leaves ample room for the channeling and edge-beveling cutters to act, and obviates tearing or disturbing the i position of the rib or wale left on the flesh side of the sole by the channeling or beveling operation, and throughwhich pass the threads to unite the upper to the inner or to be turned sole, whereas if the feed were to operate upon the flesh side of the sole and engage this rib or wale it would be greatly injured, if not destroyed.

The channel-cutter is made verticallyad justable on its holder, which holder, together with the presser-foot guiding-socket, and the bearing which holds the shaft of the perforating-awl, are all attached to a separate head made horizontally adjustable toward and from the edge-gage which bears against the edge of the sole, the adjustment of said head horizontally providing for cutting the channel at the inner edge of the rib or wale at a greater or less distance from the edge of the sole.

- The edge-bevelin g cutter is held in a block pivoted upon an adjustable post, so as to incline the cutter to correspond with the desired inclination of the bevel of the edge of the sole outside the rib or wale, and also so as to raise or lower it, to leave the extreme edge of the sole of proper thickness, and so November 3, 1879.

to pierce the rib or wale at the rear of the cut-- ters.

Figure 1 represents, in side elevation and partial section, a channeling and piercing ma, chine containing my invention; Fig. 2, a front elevation thereof; Fig. 3, a detail of the block or carrier for the beveling-cutter; Fi 4, a

detail of the holder for the channel-cutter; Fig. 5, a top view of the presser-foot detached, to show its forward extension to act upon the rib or wale and keep it down between the cut ters.

The frame -work a is of proper shape to sustain the working parts, and has bearings a to receive the main rotating shaft, upon which is the grooved cam-hub b, to receive the roller stud c on the lever d, pivoted at cl, and connected by link d with the arm (1 of the rockshaft d, held in bearing (1 the opposite end of therock-shaft'having an arm, (1, which, at one side, is provided with a suitable clamp, by which to secure thecurved awl or piercinginstrument etc the said arm. The vibration of the lever 11 by the cam-hub b will cause u the piercing-instrument to reciprocateiu the arc of a circle; but ,if it is desired that the said instrument shall not'operate when the said cam-hub rotates, then it is only necessary to lift or turn the disconnecting device f (shown as a short latch pivoted to the link (1 see Fig. 1) into the position shown in dotted lines. This disconnecting device, when turned down, as in full lines, acts at one end against the connecting-pinf fixed at the upper end of lever cl, and fitted to a slot, 3, (see Fig. 1,) in the link.

When the pinf and devicefare in contact, and lever d is moved, the piercing-instrument must also be moved; but when f is raised, as.

in dotted lines, the pin f moves in the slot 3,

be kept up from contact with the leather of the sole.

It is obvious that other forms of disconnecting devices may be used without departing from myinventionas, for'instance, the rollerstud 0 might be so held on the lever d as to be withdrawn from the groove of the cam-hub, or the end of the link d might be made as a hook to be quickly applied to or disconnected from the pin 4..

The bearing (1 is connected with a head, g, having a sleeve to enter a guide, 9 and an car, 9 connected with the said guide 1 which has in it an adjusting-screw, g having a grooved head, 9 to embrace a part of the said head 5 and cause it to be moved horizontally toward and from the edge-gage h for the edge of the sole being channeled, as the said adjusting-screw is rotated in one or the other direction.

The holder 7; for the cliannel-cutter i having aright-angled cutting-edge, is connected with the head g, as is also the guide or stand 70 for the stem. k of the presser-foot 70 which is held pressed down inany usual way as,

. for in stance, by aspiral springwithin the stand k, all as common in sewing-machines. Adjusting this head g by the screw 9 enables the cutter 2' to cut the channel in the sole, so as shown clearly in Fig. 3, is adjustably held by the screw 10 between cheeks of the box 1 pivoted at l on a vertically-adjustable post, 1*.

An adjusting-screw, F, in the box bears against the said post, and tips the box so as to incline the edge of its. cutter more or less with relation to the surface of the feedingwheel and support m, so as to bevel or chain fer the sole edge at greater or less angle; and by elevating the post i the cutter Z may be made to leave the outer edge of the sole of the desired thickness.

The edge-gage for the edge of the sole is herein shown as connected with the block I by the screw 10.

Adjusting the cutter l longitudinally inits box I adapts it to cut the incline outside the rib or wale of greater or less width, and the distance apart of the right-angled corners of the two cutters l i governs the width of the rib or wale.

Adjusting the cutter 1Z vertically, as may be done by screws l3 l3, enables the channel at the inner side of the rib to be cut to the proper depth.

The shaft'm of the feed-wheel and support m turns in a long bearing-sleeve, m pivoted at m. It is heldpressed upward by a strong spring, n.

The upward position of the bearing, and consequently of the top of the wheel, is determined by the adjustable stop n and the feedshaft m is rotated by a pawl, a of a pawlcarrier, M, the pawl engaging a ratchet-wheel, n fixed on the shaft m The pawl-carrier (shown in Fig. 1 and also in dotted lines, Fig. 2) is actuated by the cam 19 on the main shaft. (See Fig.1.) A spring, 19 holds the end of n against the cam 19.

In Fig. 5 I have shown the presserfoot with its forward extension, 1", to extend between the cutters 11 l, and bear upon the leather to be left between them to form'th'e rib or wale,tl1is extension 1" holding the leather down firmly between the two cutters, and preventing the rib or wale from being torn up or off.

The bearing m shaft m and wheel m may be depressed when desired, by the lever -t, pivoted at its rear end upon the frame-work a, the said lever being extended at right angles across the shaft m This lever is in' Fig. 2 shown as broken ofi", to illustrate the pawl and ratchet behind it.

I claim i 1. In a sole channeling and perforating machine, a feeding-wheel which is also a yielding support for the grain side of the sole, combined with the channel-cutter, and a bevelin g or chamfering cutter, and a piercing-instru ment'to pierce the rib or wale formed by the v said cutters, substantially as described.

2. In a sole channeling and perforatingmachine, a yielding presser-foot to bear upon the upper side of the sole, a feed-wheel to sustain the under side of the sole, and the channeling and beveling cutters located above the sole, combined with the perforating -instrument, substantially as described.

3. The channel and edge -beveling cutters and the piercing-instrument, combined with the presser-foot,provided with the forward extension to bear upon the rib or wale of the sole between the cutters, substantially as described.

4. In a sole channeling and perforating machine, the combination, with the channel and edge-beveling cutters, of a piercing-instrument and connecting mechanism between it and its operating-cams, to permit the cutters to operate upon the sole while the piercing-instrument remains at rest, for the purpose set forth.

5. In a sole channeling and perforating ma chine, the combination, with the adjustable sole-edge-beveling cutter, of a channeling-cut ter and perforating-instrument made laterally movable with relation to the beveling-cutter and its holder, substantially as and for the purpose described.

In testimonywhereof I have signedmy name to this specification in the presence of two subscribing witnesses.

Witnesses: MARY A. O. HOLMES.

N; E. WHITNEY, L. F. GoNNoR. 

